Actuator Runtime; Switching Differential For Cooling; Room Groups; Flow Temperature Limitation Room Heating - Siemens Synco living QAX913 Mounting And Commissioning

Actuator runtime

This defines the runtime of the actuator used. This is the time the actuator re-
quires to travel from one end position to the other.
The setting only acts on 3-position actuators. It has no impact on
2-position actuators and SSA955 radiator control actuators.
The actuator running time (1..600 s) can be set separately for every zone
valve.
Main menu > Rooms > Room X > Room controller > Act running time:
For your guidance, see the default settings (factory setting 150 s):
Room type
Radiator heating slow
Radiator heating fast
Floor heating slow
Floor heating fast

Switching differential for cooling

For rooms using radiator/floor cooling, the switching differential (0..20 °K) of
the 2-point cooling controller can be set for every room.
Main menu > Rooms > Room X > Room controller > Switching diff cool:
Factory setting

Room groups

Flow temperature limitation room heating

Based on the demand for heat, the central apartment unit determines the flow
temperature heating setpoint for each room group. It can have a max. and
min. limitation.

Minimum limitation

Minimum limitation limits the flow temperature heating setpoint of the room
group at the bottom. Even if less heat is demanded, the flow temperature does
not drop below the set limit value.
The minimum flow temperature heating setpoint can be raised depending on
the composite outside temperature.
Using this function, a minimum flow temperature can also be guaranteed for
uncontrolled rooms. In combination with "Min valve position Comfort", cold
floors can thus be prevented.
Siemens
Building Technologies
Guide value switching differential
150 s
150 s
150 s
150 s
1.0 K
Synco™ living
Function settings
101 / 134
CE1C2740en
13.12.2010